<template>
	<div>
		<div class="search">
			<input type="text" class="search-input" placeholder="请输入城市名或拼音" v-model='keyword'>
		</div>
		<div class="search-content" ref='search' v-show='keyword'>
			<ul>
				<li class="search-item border-bottom" v-for='item in list' :key='item.id' @click='handleCityClick(item.name)'>{{item.name}}</li>
				<li class="search-item border-bottom" v-show='hasNoData'>没有找到匹配数据</li>
			</ul>
		</div>
	</div>
	
</template>

<script>
	import Bscroll from 'better-scroll'
	import { mapMutations } from 'vuex'
	export default{
		name: 'CitySearch',
		data () {
			return {
				keyword:'',
				list: [],
				timer:null
			}
		},
		props:{
			cities:Object
		},
		computed:{
			hasNoData() {
				return !this.list.length
			}
		},
		watch:{
			keyword () {
				if(this.timer){
					clearTimeout(this.timer)
				}
				if(!this.keyword){
					this.list = []
					return
				}
				this.timer = setTimeout(() => {
					const result = []
					for (let i in this.cities){
						this.cities[i].forEach((value) => {
							if (value.spell.indexOf(this.keyword)>-1||value.name.indexOf(this.keyword)>-1){
								result.push(value)
							}
						})
					}
					this.list = result
				},100)
			}
		},
		mounted () {
			this.scroll = new Bscroll(this.$refs.search)
		},
		methods:{
			handleCityClick (city) {
				// this.$store.dispatch('changeCity',city)
				// this.$store.commit('changeCity',city)
				this.changeCity(city)
				//编程式跳转
				this.$router.push('/')
				// alert(city)
			},
			...mapMutations(['changeCity'])
		}
	}
</script>

<style lang= 'stylus' scoped>
	@import '~@/assets/styles/varibles.styl'
	.search
		height:.72rem
		padding 0 .1rem
		background:$bgColor
		.search-input
			height:.62rem
			width:100%
			padding 0 .1rem
			box-sizing:border-box
			line-height:.62rem
			text-align:center
			border-raduis:.06rem
			color:#666
	.search-content
		overflow:hidden
		position:absolute
		top:1.58rem
		bottom:0
		left:0
		right:0
		z-index:1
		background:#eee
		.search-item
			line-height:.62rem
			padding-left:.2rem
			background:#fff
			color:#666
			
</style>